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Is it possible to rename the output file?
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Explain about the partitioning, shuffle and sort phase in MapReduce?
How data is spilt in Hadoop?
How do reducers communicate with each other?
How does MapReduce framework view its input internally?
Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.
How much space will the split occupy in Mapreduce?
Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?
Explain the differences between a combiner and reducer
What are advantages of Spark over MapReduce?
What are the primary phases of a Reducer?
Mention Hadoop core components?
how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?
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